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UNITED STATES PATENT OFFICE.

PATRICK J hOLEARY, OF GOLDEN, COLORADO.

PETTlCOAT-PIPE FASTENER.

SPECIFICATION forming part of Letters Patent No. 244,552, dated July 19, 1881.

i Application filed April 7, 1881. (No model.)

To all whom "it may concern:

Be it known that LPATRIGK J. OLEARY, 0 Golden, in the county of Jefferson and State of Colorado, have invented a new and useful Improvement in Petticoat-Pipe Fastenings, of which the following is a full, clear, and exact description.

Myinvention relates to certain devices which are more particularly intended for use in connection with the smoke-pipe of a locomotiveboiler, for supporting, adjusting, and keeping in place the petticoat-pipe.

The object of the invention is to provide a more secure, rapid, and convenient method of attaching, supporting, and removing the pet ticoat-pipe than the methods heretofore employed.

1n the accompanying drawings, Figure 1 represents a transverse vertical section of a boiler provided with my improvements. Fig. 2 is a side View of the same, partially broken away. Fig. 3 is a side view, Fig. 4 a front view, and Fig. 5 a top view, of the petticoat-pipe and lugs attached thereto. Fig. 6 is a front View of one of the hangers for supporting said petticoatp1pe.

Similar letters of reference indicate corresponding parts.

Riveted or otherwise attached to or constructed in one piece with the inner or petticoat pipe, A, are two lugs, B, provided with slots 1) for engagement with lugs on hangers.

Riveted or otherwise suitably attached to the boiler are two hangers, 0, provided with lugs E, attached in any suitable manner to or made in one piece with the said hangers. These lugs are provided with slots 6 for the reception .of wedges or keys D. The hangers are here sition and the slotted lugs B are slipped over the lugs E of the hangers O. The wedges or keys D are then inserted with the smaller ends downward in the slots 0 of the lugs E and driven home with a hammer until they fit tightly enough to support the pipe, after which the weight of the pipe has a tendency to force them 0 down farther and cause them to fit still more securely. The heat of the boiler after the fire is built also tends, by expanding the wedges,

to make them fit more securely.

When it is desired to raise or lower the pipe the front boiler-head is removed and the wedges are struck upward with a hammer, which loosens them and removes thelateral pressure from the lugs 13, thus allowing the pipe to be moved to a certain extent either up or down, but still preventing it from falling or inclining from a vertical direction.

By means of my invention disadvantages incident to the former methods'of supporting and securing the petticoat-pipe by bolts and 6 nuts are obviated. One disadvantage in the former method was the loss of time in taking out the pipe to clean the boiler (which it was necessary to do two or three times a week) or to readjust it to the proper height, it generally taking two men from ten to thirty minutes to perform the work, while by my method it can be done in a much shorter time. Another disadvantage was the waste occasioned by the heat of the boiler partly fusing the threads of 7 5 the nuts and bolts after they had been in position twenty-four hours or more, making it necessary to strike off the nut with a chisel and hammer, and thus spoiling the-bolt, in order to remove or readjust the pipe.

One method of constructing the petticoatpipe and lugs is bymaking the pipe and one lug in a single piece and rolling it into a cylinder and riveting or attaching to it in any suitable manner the other lug. 85

I am aware that a petticoat-pipe has been provided with forked lugs working in upright guide-rods; but

What I claim is- The petticoat pipe A, provided with two 0 slotted lugs, E, and the keys D, the whole constructed and arranged on the inside of the boiler, as shown and described.

PATRICK JOHN OLEARY.

Witnesses:

DANIEL JOSEPH BROPHY, EDWARD LoUIs BERTHoUD. 

